Delete expired url cache data

1 files changed, 41 insertions, 2 deletions

diff --git a/synapse/rest/media/v1/filepath.py b/synapse/rest/media/v1/filepath.py
index d92b7ff337..c5d43209f9 100644
--- a/synapse/rest/media/v1/filepath.py
+++ b/synapse/rest/media/v1/filepath.py
@@ -73,19 +73,58 @@ class MediaFilePaths(object):
         )
 
     def url_cache_filepath(self, media_id):
+        # Media id is of the form <DATE><RANDOM_STRING>
+        # E.g.: 2017-09-28-fsdRDt24DS234dsf
         return os.path.join(
             self.base_path, "url_cache",
-            media_id[0:2], media_id[2:4], media_id[4:]
+            media_id[:10], media_id[11:]
         )
 
+    def url_cache_filepath_dirs_to_delete(self, media_id):
+        "The dirs to try and remove if we delete the media_id file"
+        return [
+            os.path.join(
+                self.base_path, "url_cache",
+                media_id[:10],
+            ),
+        ]
+
     def url_cache_thumbnail(self, media_id, width, height, content_type,
                             method):
+        # Media id is of the form <DATE><RANDOM_STRING>
+        # E.g.: 2017-09-28-fsdRDt24DS234dsf
+
         top_level_type, sub_type = content_type.split("/")
         file_name = "%i-%i-%s-%s-%s" % (
             width, height, top_level_type, sub_type, method
         )
+
         return os.path.join(
             self.base_path, "url_cache_thumbnails",
-            media_id[0:2], media_id[2:4], media_id[4:],
+            media_id[:10], media_id[11:],
             file_name
         )
+
+    def url_cache_thumbnail_directory(self, media_id):
+        # Media id is of the form <DATE><RANDOM_STRING>
+        # E.g.: 2017-09-28-fsdRDt24DS234dsf
+
+        return os.path.join(
+            self.base_path, "url_cache_thumbnails",
+            media_id[:10], media_id[11:],
+        )
+
+    def url_cache_thumbnail_dirs_to_delete(self, media_id):
+        "The dirs to try and remove if we delete the media_id thumbnails"
+        # Media id is of the form <DATE><RANDOM_STRING>
+        # E.g.: 2017-09-28-fsdRDt24DS234dsf
+        return [
+            os.path.join(
+                self.base_path, "url_cache_thumbnails",
+                media_id[:10], media_id[11:],
+            ),
+            os.path.join(
+                self.base_path, "url_cache_thumbnails",
+                media_id[:10],
+            ),
+        ]